RP10-investigating animal response Flashcards

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1
Q

How can a choice chamber be set up to measure the favourable environment of a small organism

A

by setting up chambers in different quadrants with varying conditions: dark + dry, dark + damp, light + dry, light + damp

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2
Q

what are some control variables when repeating this experiment

A

-number of animals
-environmental conditions
-time allowed for animals to choose

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3
Q

what statistical test is used to analyse the results of this practical and why

A

chi-squared test
compares the expected and observed values and tests if there is a significant difference

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4
Q

what is the conclusion drawn if the calculated value is greater than the critical value

A

-null hypothesis is rejected
-less than 5% probability that the difference is due to chance alone
-there is a statistically significant difference between the expected and observed values

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5
Q

what do animals do when they are in an unfavourable environment

A

they move faster and change direction more frequently to increase their chance of survival

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6
Q

state the hazard and precaution for this practical

A

the live organisms are a biohazard and so should wash hands after handling

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